Copper- or iron-catalyzed oxidative rearrangement of bicy- clo[n.1.0]alkan-1-ols yields 3-hydroperoxycycloalkanones and/or bicyclic peroxyhemiketals, which are transformed into 2,3-epoxy- cycloalkanones by treatment with a base.
[EN] PYRAZOLO[1,5-A]PYRIDINES AS MARK INHIBITORS<br/>[FR] PYRAZOLO[1,5-A]PYRIDINES EN TANT QU'INHIBITEURS DE MARK
申请人:MERCK & CO INC
公开号:WO2010017046A1
公开(公告)日:2010-02-11
The invention encompasses pyrazolo[1,5-a]pyridine derivatives which selectively inhibit microtubule affinity regulating kinase (MARK) and are therefore useful for the treatment or prevention of Alzheimer's disease. Pharmaceutical compositions and methods of use are also included.
NOVEL NONLINEAR CHROMOPHORES ESPECIALLY SUITED FOR USE IN ELECTRO-OPTICAL MODULATION
申请人:Bretonniere Yann
公开号:US20130123508A1
公开(公告)日:2013-05-16
The present invention relates to heptamethine hemicyanine chromophores of formula (I): where R
1
, R
2
, R
3
, R
4
, R′
4
, R
5
, R′
5
, R
6
, R′
6
, R
7
, X, Y
1
and Y
2
are as defined in claim
1
, to the method for preparing same as well as to the use of such chromophores for the second-order nonlinear optical property thereof.
Scalable, Electrochemical Oxidation of Unactivated C–H Bonds
作者:Yu Kawamata、Ming Yan、Zhiqing Liu、Deng-Hui Bao、Jinshan Chen、Jeremy T. Starr、Phil S. Baran
DOI:10.1021/jacs.7b03539
日期:2017.6.7
A practical electrochemical oxidation of unactivated C–H bonds is presented. This reaction utilizes a simple redox mediator, quinuclidine, with inexpensive carbon and nickel electrodes to selectivelyfunctionalize “deep-seated” methylene and methine moieties. The process exhibits a broad scope and good functional group compatibility. The scalability, as illustrated by a 50 g scale oxidation of sclareolide
Heterogeneous versus Homogeneous Copper(II) Catalysis in Enantioselective Conjugate-Addition Reactions of Boron in Water
作者:Taku Kitanosono、Pengyu Xu、Shū Kobayashi
DOI:10.1002/asia.201300997
日期:2014.1
reported for the conjugateaddition of boron. Heterogeneous cat. 1 also gave high yields and enantioselectivities with some substrates and also gave the highest TOF (43 200 h−1) for an asymmetric conjugate‐additionreaction of boron. In addition, the catalyst systems were also applicable to the conjugateaddition of boron to α,β,γ,δ‐unsaturated carbonyl compounds, although such reactions have previously